Display apparatus



Jan. 17, 1928.

l. 5. CALL DISPLAY APPARATUS Filed June 1926 Patented Jan. 17, 1928.

UNITED STATES ISAAC SLATER CALL, OF SAVANNAH, GEORGIA.

DISPLAY APPARATUS.

Application filed June 15, 1926.

The present invention relates to display apparatus, the object being toprovide a sign or picture on which liquid appears. a portion of theliquid being given the sinmlation of movement.

In the accompanying drawings Z- Figure 1 is a front elevation of anembodiment of the invention.

Figure 2 is a similar view of the rear thereof, portions beingillustrated diagrammatically.

As disclosed, a display sheet or card 3 is employed, on which is printedor painted the pictureot a container 4, which obviously may take anydesired form. In the specific embodiment the form is a bottle, and thelower portion thereofv is represented as containing liquid, shown at 5.The sheet or card is cut away and a glass inserted at 6 at the top ofthe representation oi the body of liquid.

Pivotally supported on the rear side of the card or design is a frame,preferably of if-form, and designated 7. The pivotal support for saidframe is illustrated at 8. The depending arm 9 of the frame carries asuit able pendulum or weight 10. The upstanding arms 11 of the framesupport a plate 12 that is located behind the opening 6, and has thesimulation of liquid thereon, as illustrated at 13.

An electro-magnet 14 suitably supported either on or adjacent to thesheet or card 3 and armature 15 operating in the electro' is connectedby a link 17 with a bell crank 18. This bell crank has a link connection19 with the frame 7. The electromagnet- 1a is included in an electriccircuit, which also includes a suitable source of power 20 and mayfurther have a circuit controller as 21 therein. A second auto maticcircuit controller comprises a pair of contact elements 22 and 23, onebeing carried by the link 17 and moving with said link into and out ofengagement with the other contact element 22. A spring 24 may also beemployed and is connected to the plate 12 and coacts with the weight 10durmg the swinging movement of the frame and late. p With thisconstruction, it will be evident that when the switch 21 is closed, thecircuit will be initially complete through the electro-magnet 14,thereby energizing the latter and causing the armature to be drawn intosaid magnet. This pulls down the link 17 Serial No. 116,086.

and moves the frame and plate 12 in one whereupon the magnet isre-energized' As a consequence the plate is continuously swung back andforth partly by the gravitation of the pendulum 20 and partly by theelectric motor, and this action gives a simulation of movement of thesurface portion of the liquid through the opening 6.

From the foregoing, it is thought that the construction, operation and-many advantages of the herein described invention will be apparent tothose skilled in the art, without further description, and it will beunderstood that various changes in the size, shape, roportion and minordetails of construction may be resorted to without departing from thespirit or sacrificing any of the advantages of the invention.

What it claim, is:

1. A display sheet having a display picture thereon and an openingtherethrough adjacent the picture, a depending swinging pendulum memberbehind the plate having a pivot mounting, and a portion extendingupwardly above the pivot mounting, a plate mounted on said upwardlyextending portion and swinging with the pendulum, said plate beingbehind the opening and having a picture portion that is movablyassociated with the display picture, an electric motor including amovable armature, a support carrying said movable armature, circuitclosing means for the motor including a member operated by the armaturesupport, and a link connection between the armature support and pendulummember for effecting the swinging of the latter on the movement of thearmature.

2. A display sheet having a display picture thereon and an openingtherethrough adjacent the picture, a swinging pendulum member behind theplate having a pivot mounting and a portion extending upwardly above thepivot mounting, a plate mounted on said upwardly extending portion andswinging with the pendulum, said pendulum having a weight suflicient tokeep the same in a substantially upri ht central position, said platebeing behind t e openingband having a picture portion that is move lyassociated with the display picture, an electric motor including amovable armature, circuit closing means for the motor operated by thearmature, a bell crank, a link connected to one arm of the bell crankand supporting the armature, and a link connecting the other arm of thebell crank and the pendulum.

3. A display sheet having a display picture thereon and an openingthercthrough adjacent the picture, a swinging pendulum member behind theplate having a pivot mounting and a portion extending upwardly above thepivot'mounting, a plate mounted on said upwardly extending portion andswinging with the pendulum, said plate being behind the opening andhaving a picture portion that is movably associated with the displaypicture, an electric motor including a movable armature, a supportcarrying said movable armature, a link connection between the armaturesupport and pendulum member for efiectin'g the swinging of the latter onthe movement of the armature, circuit closing means for the motorcomprising coacting clement-s, one of which is moved by the armaturesupport, and a spring for normally holding the pendulum in centralposition and reacting on said pendulum as the pendulum is swung by theelectric motor.

In testimony whereof I aifix my signature.

ISAAC SLATER CALL.

